Apparatus, method thereof, and storage medium for adjusting an image quality of an image for live view display

A method for an apparatus, the apparatus including a sensor and being configured to control an aperture, the method comprising:

• detecting a luminance of an object;
• controlling for executing exposure control by adjusting at least one of, based on a luminance of an object, a shutter speed, an aperture value, and a sensitivity;
• and
• switching on and off a simulation function for adjusting an image quality of an image for live view display on a display apparatus to match an image quality corresponding to an opening of the aperture for acquiring a still image for recording,
• wherein in a case where the simulation function is on, the controlling controls
• (1) a difference amount between an aperture value for acquiring the image for live view display and an aperture value for acquiring the still image depending on an aperture value for acquiring the still image for recording, and
• (2) the difference amount such that the difference amount obtained when the aperture value for acquiring the still image corresponds to a second aperture value is larger than the difference amount obtained when the aperture value for acquiring the still image corresponds to a first aperture value, the second aperture value being larger than the first aperture value, and
• wherein the image quality of the image for live view and the image quality of the still image are changed due to the aperture value for acquiring the image for live view and the aperture value for acquiring the still image, respectively.

A non-transitory computer-readable storage medium storing programs for causing a computer to perform a method of controlling an apparatus including an element, the method comprising:

• detecting a luminance of an object;
• controlling for executing exposure control by adjusting at least one of, based on a luminance of an object, a shutter speed, an aperture value, and a sensitivity;
• and
• switching on and off a simulation function for adjusting an image quality of an image for live view display on a display apparatus to match an image quality corresponding to an opening of the aperture for acquiring a still image for recording,
• wherein in a case where the simulation function is on, the controlling controls
• (1) a difference amount between an aperture value for acquiring the image for live view display and an aperture value for acquiring the still image depending on an aperture value for acquiring the still image for recording, and
• (2) the difference amount such that the difference amount obtained when the aperture value for acquiring the still image corresponds to a second aperture value is larger than the difference amount obtained when the aperture value for acquiring the still image corresponds to a first aperture value, the second aperture value being larger than the first aperture value, and
• wherein the image quality of the image for live view and the image quality of the still image are changed due to the aperture value for acquiring the image for live view and the aperture value for acquiring the still image, respectively.